Java可视化报表,POI操作word的基本用法
1、API介绍
1、操作Word正文
XWPFDocument代表一个docx文档,其可以用来读docx文档,也可以用来写docx文档
一个文档包含多个段落,一个段落包含多个Runs文本,一个Runs包含多个Run,Run是文档的最小单元
获取所有段落:
List<XWPFParagraph> paragraphs = word.getParagraphs();
获取一个段落中的所有片段Runs:
List<XWPFRun> xwpfRuns = xwpfParagraph.getRuns();
获取一个Runs中的一个Run:
XWPFRun run = xwpfRuns.get(index);
2、操作Word表格
一个文档包含多个表格,一个表格包含多行,一行包含多列单元格
获取所有表格:
List<XWPFTable> xwpfTables = doc.getTables();
获取一个表格中的所有行:
List<XWPFTableRow> xwpfTableRows = xwpfTable.getRows();
获取一行中的所有列:
List<XWPFTableCell> xwpfTableCells = xwpfTableRow.getTableCells();
获取一格里的内容:
List<XWPFParagraph> paragraphs = xwpfTableCell.getParagraphs();
1、word工具类
public class WordUtils {
/**
* 导出word工具类
* @param response
* @param user
* @throws Exception
*/
public static void exportWord(HttpServletResponse response, User user) throws Exception{
File classpath = new File(ResourceUtils.getFile("classpath:").getPath());
File file = new File(classpath.getAbsolutePath(), "/word_template/contract_template.docx");
//读取模板信息
XWPFDocument document = new XWPFDocument(new FileInputStream(file));
Map<String, String> map = new HashMap<>(10);
map.put("userName", user.getUserName());
map.put("hireDate",new SimpleDateFormat("yyyy-MM-dd").format(user.getHireDate()));
map.put("address", user.getAddress());
//处理数据 获取所有段落
List<XWPFParagraph> paragraphs = document.getParagraphs();
for (XWPFParagraph paragraph : paragraphs) {
//获取所有片段
List<XWPFRun> runs = paragraph.getRuns();
for (XWPFRun run : runs) {
String text = run.getText(0);
for (String s : map.keySet()) {
if (text.contains(s)){
//替换字段
run.setText(text.replaceAll(s,map.get(s)),0);
}
}
}
}
//处理表格
List<com.xiaobear.pojo.Resource> resourceList = user.getResourceList();
//获取第一个表格
XWPFTable table = document.getTables().get(0);
//获取第一行
XWPFTableRow row = table.getRow(0);
int rowIndex = 1;
for (com.xiaobear.pojo.Resource resource : resourceList) {
//增加行
addBlankRow(table,row,rowIndex);
XWPFTableRow tableRow = table.getRow(rowIndex);
tableRow.getCell(0).setText(resource.getName());
tableRow.getCell(1).setText(resource.getPrice().toString());
tableRow.getCell(2).setText(resource.getNeedReturn()?"需要":"不需要");
File imageFile = new File(classpath,"/static"+resource.getPhoto());
setCellImage(tableRow.getCell(3),imageFile);
rowIndex++;
}
// 处理表格开始结束
// 4、导出word
String filename = "员工(" + user.getUserName() + ")合同.docx";
response.setHeader("content-disposition", "attachment;filename=" + new String(filename.getBytes(), "ISO8859-1"));
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
document.write(response.getOutputStream());
}
/**
* 向单元格中写入图片
* @param cell
* @param imageFile
*/
private static void setCellImage(XWPFTableCell cell, File imageFile) {
XWPFRun run = cell.getParagraphs().get(0).createRun();
// InputStream pictureData, int pictureType, String filename, int width, int height
try(FileInputStream inputStream = new FileInputStream(imageFile)) {
run.addPicture(inputStream,XWPFDocument.PICTURE_TYPE_JPEG,imageFile.getName(), Units.toEMU(100),Units.toEMU(50));
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 增加一个空行
* @param table
* @param row
* @param rowIndex
*/
public static void addBlankRow(XWPFTable table, XWPFTableRow row, int rowIndex){
//插入一行 ps:没有样式
XWPFTableRow xwpfTableRow = table.insertNewTableRow(rowIndex);
xwpfTableRow.getCtRow().setTrPr(row.getCtRow().getTrPr());
//获取原来row的单元格
List<XWPFTableCell> tableCells = row.getTableCells();
if (CollectionUtils.isEmpty(tableCells)) {
}
XWPFTableCell temp;
for (XWPFTableCell cell : tableCells) {
temp = xwpfTableRow.addNewTableCell();
//单元格的样式、属性
temp.getCTTc().setTcPr(cell.getCTTc().getTcPr());
temp.getParagraphs().get(0).getCTP().setPPr(cell.getParagraphs().get(0).getCTP().getPPr());
}
}
}